National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Overcast

19°F

-7°C

Humidity 62%
Wind Speed W 12 G 29 mph
Barometer 29.87 in (1011.6 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 27 Jan 8:56 pm EST
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 11. Wind chill values as low as -1. West wind around 11 mph, with gusts as high as 30 mph.

    Low: 11 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Increasing clouds, with a high near 23. Wind chill values as low as -2. West wind 5 to 10 mph, with gusts as high as 23 mph.

    High: 23 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers after 4am. Mostly cloudy, with a low around 14. Northwest wind 3 to 8 mph. Chance of precipitation is 20%.

    Low: 14 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: A slight chance of snow showers before 1pm. Mostly sunny, with a high near 24. Northwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 24 °F

    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 10. West wind around 9 mph, with gusts as high as 22 mph.

    Low: 10 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 21. West wind around 10 mph, with gusts as high as 22 mph.

    High: 21 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 9. West wind 5 to 8 mph.

    Low: 9 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 29. Northwest wind around 6 mph becoming north in the afternoon.

    High: 29 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely, mainly after 4am. Mostly cloudy, with a low around 19. Northeast wind 6 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Likely

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 11. Wind chill values as low as -1. West wind around 11 mph, with gusts as high as 30 mph.
Wednesday
Increasing clouds, with a high near 23. Wind chill values as low as -2. West wind 5 to 10 mph, with gusts as high as 23 mph.
Wednesday Night
A slight chance of snow showers after 4am. Mostly cloudy, with a low around 14. Northwest wind 3 to 8 mph. Chance of precipitation is 20%.
Thursday
A slight chance of snow showers before 1pm. Mostly sunny, with a high near 24. Northwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 10. West wind around 9 mph, with gusts as high as 22 mph.
Friday
Sunny, with a high near 21. West wind around 10 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 9. West wind 5 to 8 mph.
Saturday
Partly sunny, with a high near 29. Northwest wind around 6 mph becoming north in the afternoon.
Saturday Night
Snow likely, mainly after 4am. Mostly cloudy, with a low around 19. Northeast wind 6 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Sunday
Snow likely before 10am, then snow likely, possibly mixed with rain between 10am and 3pm, then snow likely after 3pm. The snow could be heavy at times. Cloudy, with a high near 34. Breezy, with a north wind 16 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 70%.
Sunday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 22. Northwest wind 14 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 33. Northwest wind 9 to 13 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 22. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 32. Northwest wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
5:33 pm EST Jan 27, 2026
Forecast Valid:
9pm EST Jan 27, 2026-6pm EST Feb 3, 2026
 
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Additional Resources

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Chance of Precipitation